Last updated: May 29, 2026. This guide was reviewed by Mike Holp, Founder & CEO of TubeAnalytics.
The YouTube analytics glossary defines key performance metrics — including views, watch time, click-through rate, CPM, RPM, retention rate, and engagement rate — used to measure channel performance.
YouTube analytics terms fall into four categories: engagement (AVD, CTR, retention), revenue (CPM, RPM), growth (subscriber conversion, traffic sources), and technical (impressions, reach). CPM is what advertisers pay per 1,000 impressions. RPM is your actual earnings per 1,000 views after YouTube share.